Improvement in lining-plates for fire-boxes of cooking-stoves



l. DWYER.

Lining Plates for Fire-Boxes of Cooking-Stoves.

No. 146,890. Pate ntedlan.27,l874.

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AMP/romurfiamM/c calm/055mm mums} UNITED STATES PATENT OFFICE.

JAMES DYVYER, OF DETROIT, MICHIGAN, ASSIGNOR TO DETROIT STOVE- WORKS, OF SAME PLACE.

IMPROVEMENT IN LINING-PLATESTOR F|RE-BOXE$ 0F COOKING'Sl'OVES.

Specification forming part of Letters Patent No. 146,890, dated January 27, 1874; application filed December 10, 1873.

To all whom it may concern:

Be it known that I, JAMES Dwrnmof Detroit, in the county of Wayne and State of Michigan, have invented an Improved Bottom Plate for Cooking-Stove Fire-Boxes, of which the following is a specification:

In wing-plate eooking-stovesthat is, those in which the oven is carried forward under the fire-box or combustion-chamber--it is found, in practice, that the wingplate is extremely liable to crack from the greater expansion of its central part than of its front and sides, due to the intense heat from the fire, which is built directly upon it in woodstoves, and from hot coals dropping on it through the grates of coal-stoves; and the object of this invention is to provide a plate to protect the wing plate from too great a temperature, and which will also prevent'an undue temperature in the fore part of the oven; and in wood-stoves a central rib will afford a better support to the fuel.

Figure 1 is a perspective view of a portion Fig. 3 is a box, of ordinary construction. 0 is a bottom plate, longitudinally stepped or terraced, with a flange, a, at each end, to rest upon the sides of the wing-plate within the fire-box. The body is inclined to the front, to facilitate the discharge of the ashes, and protects the surface of the wing-plate within the firebox from the intense heat to which it would otherwise be subjected, and which would crack it by expanding the central part, while the front and sides, being exposed and cool, would resist such expansion. Across the middle of the plate 0 is molded an upward-projecting rib, I), having its top edge in the same horizontal plane as the end flanges a, which serves to support the wood, when such is used as fuel, as well as to strengthen the plate.

What I claim as my invention, and desire to secure by Letters Patent, is

The herein-described plate 0, provided with the end flanges a a and the central rib b, for protecting the surface of the wing-plate A within the fire-box of a cooking-stove, substantially as set forth.

JAMES DWYER.

\Vitnesses H. F. EBERTS, (l. E. Hvnsrrs. 

